use MB_PYTHON_OSX_VER

osx_utils.sh

@@ -425,8 +425,9 @@ function activate_ccache {
 }
 
 function macos_intel_build_wrap {
+    local py_osx_ver=$(echo ${MB_PYTHON_OSX_VER:-10.9} | sed "s/\./_/g")
     export PLAT="x86_64"
-    export _PYTHON_HOST_PLATFORM="macosx-10.9-x86_64"
+    export _PYTHON_HOST_PLATFORM="macosx-${py_osx_ver}-x86_64"
     export CFLAGS+=" -arch x86_64"
     export CXXFLAGS+=" -arch x86_64"
     export ARCHFLAGS+=" -arch x86_64"
@@ -456,15 +457,16 @@ function macos_arm64_build_wrap {
 
 function fuse_macos_intel_arm64 {
     local wheelhouse=$(abspath ${WHEEL_SDIR:-wheelhouse})
+    local py_osx_ver=$(echo ${MB_PYTHON_OSX_VER:-10.9} | sed "s/\./_/g")
     mkdir -p tmp_fused_wheelhouse
     for whl in $wheelhouse/*.whl; do
-       if [[ "$whl" == *macosx_10_9_x86_64.whl ]]; then
+       if [[ "$whl" == *macosx_${py_osx_ver}_x86_64.whl ]]; then
            whl_base=$(echo $whl | rev | cut -c 23- | rev)
            echo $whl_base
            if [[ -f "${whl_base}macosx_11_0_arm64.whl" ]]; then
                delocate-fuse $whl "${whl_base}macosx_11_0_arm64.whl" -w tmp_fused_wheelhouse
-               mv tmp_fused_wheelhouse/$(basename $whl) $wheelhouse/$(basename ${whl_base})macosx_10_9_universal2.whl
-               # Since we want one wheel thats installable for testing we are deleting the 10_9_x86_64 wheel.
+               mv tmp_fused_wheelhouse/$(basename $whl) $wheelhouse/$(basename ${whl_base})macosx_${py_osx_ver}_universal2.whl
+               # Since we want one wheel thats installable for testing we are deleting the *_x86_64 wheel.
                # We are not deleting arm64 wheel because the size is lower and homebrew/conda-forge python
                # will use them by default
                rm $whl